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Message: <blockquote data-quote="zako" data-source="post: 8009716" data-attributes="member: 629735"><p>The only "flaw" of a PPI P900.4 I heard about is that a then-PPI employee posted his test of the amplifier, and while it looked good, channel separation 1khz was in low 30s, which seems kind of low. Unfortunately, this has not been confirmed or denied by a third party test. I know that similar designs from Polk and Hertz did not have this issue. This spec is the last one most people would care about. In the end the "flaw" is only such if you already have an audio system expertly tuned with 30 band equalizer and time alignment, and low channel separation is now the only thing that prevents you from descending into a sonic nirvana. The amount of power these things have is incredible, and they get only barely warm when driven hard.</p></blockquote><p></p>

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